A garage left open during house work can easily become a hiding place for a small tree frog. Croaking may reveal its presence without giving away its hiding spot. Rather than chasing it from corner to corner, leave an obvious route outdoors and avoid disturbing it; that gives the frog a way out without the risks of pursuit.

Give the garage a single obvious exit, with the interior dim, noise kept down, and the opening to the yard or driveway clear of obstacles. Wet weather helps, and during a rainy stretch the frog may make its own way out.

A frog within reach can be moved outside with minimal handling: cover it with a container, then slide stiff paper or cardboard underneath. Clear clutter from the doorway as well. Tarps, boxes, and stacked materials give a small animal plenty of places to disappear again.

Continued croaking from a hidden spot may mean the frog is tucked behind shelving, insulation, or a workbench. Sound carries in a garage, so the call may seem closer than the frog really is. Searching every corner and shifting everything around is generally less effective than waiting patiently with an unobstructed route outside.