My partner and I were driving on the highway back from a trip to Switzerland; it was about 02:00 AM when we arrived at about 200 meters from the toll gate Porte-Lès-Valence direction south, I noticed 5 large yellow orange lights pulsing a few meters above the toll gate. As we approached I saw that these lights where positioned on a dark cigar like craft. Then after a few seconds, the craft gained altitude and disappeared into the clouds. I reported what I saw to my girlfriend sitting on the passenger seat, but she didn't have enough time to see it before it disappeared. At this time the Highway was empty and I didn't notice any other car around. The photoshoped illustrations provided are describing the UFO main apparence and ist position on the exact location taken from a street view screenshot (the pulsating lights could not be reproduced on the illustration). - text for image 1 : yellow orange pulsing lights, not simultanious and without order - text for image 2 : the object dissapeared behind the clouds (slowly flying up aprox 10 to 20 meters, the clouds are at very low altitude)