Yes, you can. You can get pulled over and get a ticket for driving to slow stating “Below minimum speed” as your offense.
Driving too slow is a block to the normal flow of traffic and getting a ticket for this is in the same ball park as getting a speeding ticket. Your fine and points will be determined from state to state. Simply put obstructing traffic by driving slowly is against the law and frustrating for other drivers.
There is a minimum speed limit just as there is a set speed limit on highways. If you ever notice people in the right hand lane have a tendency to drive slower then those in the left hand lane. A given rule on the road is while driving on a highway and you want to go faster then the other cars, move on over to the left lane to pas other drivers.
In Florida the minimum is 40 mph on highways with at least four lanes and the set speed limit is 55 mph. If you have a vehicle that cannot go the speed limit, moped head, scooter etc, then you cannot drive on these highways. Go with the flow just to be safe and avoid tickets that could impact your auto insurance.