Secure Polish Trailer Parking

[koiman]

I have a piece of expensive & complicated equipment mounted on a trailer.
I have to tow it from Rotterdam to Riga.
I cannot cover it over easily.
I am concerned that its security may be in doubt while parked somewhere in Poland mid journey overnight.
Does anyone know of a secure parking facility where I can park up overnight that has close by sleeping, washing & eating facilities ?

[Buenchico]

It might be worth taking a look at the site which truckers use to try to find a parking area where the CCTV camera symbol is shown in green:
https://truckparkingeurope.com/
Having just looked at a few random locations though, there don't seem to be that many!