Open Carry in Utah with and without a Utah CFP
Open carry in Utah without Concealed Firearm Permit - legal only if the handgun is unloaded (nothing in the pipe and 2 actions to fire). You must avoid the Federal Gun Free School Zones (unless in your car and you stay in your car). Not legal in federal buildings, post office, or other government building where lawfully posted. Not legal in a "Mormon House of Worship". Not legal in the secure area of an airport.
Open carry in Utah WITH a Concealed Firearm Permit - legal to carry "condition 1" (round in the chamber and ready to fire). Legal to carry inside the federal GFSZ including on school grounds and into buildings (unless the school is private and the private property owner has properly posted or otherwise notified you of his objection). Not legal in federal buildings, post office, or other government buildings where lawfully posted. Not legal in a "Mormon House of Worship". Not legal in the secure area of an airport. Legal to carry on public transportation except interstate transportation (think AMTRAK). And obviously, legal to carry concealed.
Please note the mention about being in your car. Utah "Castle Doctrine" extends to your vehicle. No permit required to carry in your vehicle in the manner of your choosing. However, if you are in a federal GFSZ, you cannot exit your vehicle with your handgun unless you possess a Utah CFP. You may not carry a loaded long gun (rifle, shotgun, etc) unless you also have a Concealed Firearm Permit.
Utah honors all out of state permits, but given the wording of the Federal Statute, the use of an out-of-state permit to carry inside a federal GFSZ in Utah is yet untested in the courts. (But you did state that you took the Utah CFP Course to obtain a Utah permit. When the permit arrives, you can exercise the rights granted under the permit, but not before it is in your hand or on your person when you do so.)