Is there enough space to park and maneuver a semi truck and trailer in temple parking lot?

No, but there is a round-about right before the entrance. Might be best to call the Temple and ask about parking possibilities.

There is some bigger parking lots down the road which you could park in and walk. Maybe a 5 minute walk or so.

In my opinion, this would not be appropriate! The parking lots vary as to how much THEY are used; on-heavily-scheduled- wedding-days it would be MOST-INCONVENIENT for the driver of the semi-truck and trailer to maneuver throughout the lots without having an accidental mishap.

Maybe mid-week mid day when very few people are there...but it will tick people off. There is a parking lot nearby that is almost always empty.

No

It would totally depend on what time of day. Middle of the night, you could do it 🙂

I wouldn't

It depends on the day and if you have a trailer behind the truck if so not enough room..